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Related Experiment Video

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Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic

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The ITER core imaging x-ray spectrometer: x-ray calorimeter performance.

P Beiersdorfer¹, G V Brown, J Clementson

¹Lawrence Livermore National Laboratory, Livermore, California 94550, USA.

The Review of Scientific Instruments

|November 2, 2010

Summary

An x-ray microcalorimeter on ITER will survey heavy ion impurities and measure ion temperatures. This instrument enhances plasma diagnostics for fusion energy research.

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Area of Science:

Plasma Physics
Nuclear Fusion Engineering
Astrophysical Instrumentation

Background:

ITER requires advanced diagnostics for core plasma characterization.
Imaging crystal spectrometers provide valuable data but have limitations in impurity analysis.
X-ray microcalorimeters offer high spectral resolution for plasma diagnostics.

Purpose of the Study:

To present the anticipated performance of an x-ray microcalorimeter instrument for ITER.
To detail its role within the core imaging x-ray spectrometer system.
To highlight its capability in surveying heavy ion plasma impurities and measuring ion temperatures.

Main Methods:

Utilizing an x-ray microcalorimeter as part of the core imaging x-ray spectrometer.
Augmenting existing imaging crystal spectrometers.
Analyzing emission lines from various elemental ions at different radial positions.

Main Results:

The instrument is expected to provide a survey of heavy ion impurity concentrations in the ITER core.
Potential for determining ion temperature values from spectral line analysis.
Enhanced radial profiling of plasma parameters.

Conclusions:

The x-ray microcalorimeter will significantly improve ITER's capability for core plasma impurity assessment.
It will provide crucial data for understanding and controlling fusion plasma.
This diagnostic advancement is key for ITER's operational success and fusion energy development.